IN THIS ISSUE: Waves in the Oceans and in the Atmosphere /2 (William E. Gordon, now dean of the School of Natural Sciences at Rice University, was a professor of electrical engineering at Cornell when he conceived and supervised the construction of the world's largest radio-radar telescope at Arecibo, Puerto Rico, and served as first director of the observatory there. His current research includes radar study of high-altitude motion.) ... Turbulence in Space: Probing Outdoor Plasmas with Radar /8 (Donald T. Farley, Cornell professor of electrical engineering, considers how clues to the mysteries of nuclear fusion, as well as of the aurora, may be provided by ionospheric radar experiments combined with computer simulation.) ... The Earth's Electric Field /15 (Michael C. Kelley, a leader in the relatively new study of the electric field around the earth, discusses the use of rockets, satellites, balloons, radar, and ground-based sensors for electric-field measurements. He is an associate professor of electrical engineering at Cornell.) ... Communication with Other Intelligences /24 (Frank D. Drake, pioneer in the search for extraterrestrial intelligence, discusses the technique of radio communication and assesses the chances for success in contacting other civilizations in space. A Cornell engineering graduate, he is the Goldwin Smith Professor of Astronomy at the University and director of the National Astronomy and Ionosphere Center, which Cornell operates for NSF.) ... Faculty Publications /36